Electric safety razor



July 13 1926. 1,592,309

s. w. 1OON ELECTRIC SAFETY RAZOR Filed August 8, 1925 E gm vPATENT OFFICE.

SAMPSONW. MOON, OF CHICAGO, ILLINOIS.

merino man nazon.

Appunti mea august s, im. semi iro. 48,930. y

My 'i inventionr relates to electric safety y razors and` contemplates improved features of construction and arrangement which will produce alight, compact and conveniently manipulated device and a device'which may be connected directly with the ordinary `electric light circuit, and which is'devoid'of all contacts f and which is eiliciently rsealed against the entrance of moisture and dust. A structure embodying the various featuresV ofV the invention yis disclosed on the dra-wings, in which; 4 e Figure 1 is a side eIevatiOnalview vof the device; y v .i Fig. 2 is a side view of the device with theenclos'ure shell in cross section;

Fig. 3 is anend view; Fig.` 4 is a side elevational view'taken on ra lane at 90 degrees with the plane of the side viewzFigur'e 2, and

Fig. 5 `is a seA tional view on the plane 5 5, Figure 5.

The device 'y is `of that class in which the shaving or other tool iscarried by an armature which is caused to rapidly vibratein synchronism with the current alternation in an alternating current electromagnet structure. The enclosingfand grip frame for the device comprises the conicalvhead 10 and the cylindrical sleeve `1,1 having threaded engagement atits front end with the threadedbase 12 of the head. The Vhead and shellare of insulating material such as 'bakelite ySecured, tothe inner side` of the head 10 by screws 13 is the annular plate 14 of magnetic material forming the yoke of the electromagnet cores 15 and 16 which are Asecured to the plate by screws 17, as clearly shown'in Fig. 4. vThese cores support the energizing coils 18 and 19, the cores extending rearwardly'from the head in substantially arallel relationship and being` deflected ater'ally` at their outer endsto form the `poles 42Q andy 21.l Between these poles 'extendsj theQoiiter endfof 'the armature tongue 22 WhS inner vend isl secured in a sleeve 23,` this sleeve bein 'secured at its inner end? ,to the outer en of the `L-shape spring 24whose`innr end issecured to the plate 14"by means ofscrews 25, or otherwise,

'the' springl ',sleeve'23 being' ,preferably of `noii-ini'igfiietie` vmaterial.k 'lhe spring supports the armature tongue lfor swinging or vibratory movement to respond to the Amagnetic changes in the electromagnetl cores,

and as alternating current is used for operating my device, the armature tongue is pre'ferab polarized and its weight and the spring a justed so that the armature can vibrate in synchronism with the frequenc of the alternating current flowing throng lthe coil. To prevent sticking of the armature against the poles and also to deaden any impact noises, the end of the armature tongue is enclosed by a sleeve 26 of nonma etic material such as rubber.

ecured to the pole ends of the electro- `magnet coresisthe annular plate 27 of nonmagnetic material, and the plate may be secured to these cores as by soldering. Secured tothe plates by means of screws 28 is the cylindrical block 29 from which extend the terminal pins 30 and 31 connected with the electromagnet winding by means of leads 32 yand 33. The block 29 forms a support for the outer end of the enclosure sleeve 11 having in its face the opening 34 into which the terminal pins extend and into which a suitable terminal plug may be inserted to receive` the pins and convey electric current thereto. To protect the apparatus from moisture `or dust, a. Washer 35 of rubber or other suitable material is inserted between the base of the sleeve and block 29, as clearly shown in Figs. 3 and 4. The outer ends of the terminal pins are also a distance within the ends ofthe sleeve so that they will be protected from injury.

The head 10 has the axial passageway 36 Athrough which extends the tool supporting post or bar 37 which, at its inner end, is deflected laterally and bifurcated to receive the spring 24 and to be readily secured to the spring as by means of soldering. With this arrangement, vibration of the armature tongue will be communicated to the supporting post and to the tool supported thereon. The tool, shown, is a razor, the supporting frame 38 having the plate 39 between which and the plate 40 is secured the razor blade 41. The frame 38 has the threaded stem 42 secured by the threaded coupling 43 to the outer end of the post 37 so that the frame will partake of the armature vibration. The frame is shown secured to the armature structure so that it will vibrate longitudinally relative to the blade, although connection could be made so that the blade would vibrate transverselyv or diagonally. To prevent moisture from entering into the enclosing housing, a sleeve 44 of rubber may be applied around the coupling 43 and the end of the head 10, the head having the bead 45 which serves to securely hold the scaling sleeve in place. The sleeve may be of suffciently thin material so as not to interfere with the vibration movement of the armature structure.

The device of my invention is light and compact and conveniently manipulated. There are no contacts within t-he device as the electromagnet coils are directly and permanently connected with the alternating current energizing circuit when a circuit socket is applied to the terminal pins 3() and 31. The arrangement and adjustment is such that the armature will respond accurately and smoothly to the electron'iagnetic impulses caused by the alternating current flow through the coils and the tool is therefore given a smooth vibratory movement. Instead of a shaving tool, massaging or other tools may be applied to the end of the post 37. By means of the washer 35 and the rubber sleeve 44, the structure is secure against entrance of moisture or dust to the inside of the housing. Changes and modifications can be made without departing from the scope of my invention and I do not, therefore, limit myselfto precisely what I have shown and described.

I claim as follows:

l. In a device of the class described, the combination of a head, a yoke plate secured thereto, electromagnet cores extending from said plate and secured thereto, the outer ends of said cores being shaped to form poles, an armature tongue having its outer end disposed between said poles, a spring secured to said yoke plate and said armature tongue being secured to said spring whereby said tongue will be supported to vibrate, and a tool supporting stem extending from said spring and through said head.

2. ln a device of the class described, the ombination of an enclosure comprising a head and a shell having detachable engagement therewith, a yoke plate secured to the inner side of said head, electromagnet cores extending from said plate and secured thereto, coils on said cores, the outer ends of said cores being deflected laterally to form opposed poles, an armature tongue having its outer end interposed between said oles, a spring secured to the inner end of said armature tongue and supported on said yoke plate whereby said armature may vibrate in res onse to electromagnetic variations in said cores, said head having a passageway, a tool supporting stem extending through said passageway and adapted at its outer end to receive a tool, the inner end of said stem being secured to said spring whereby said stem will partake of the vibrations of said armature, and a terminal block secured to the outer ends of said cores and terminal pins on said block connected with the electromagnet coil windings 3. In a device of the class described, the combination ot' an enclosing housing comprising a conical head and a cylindrical sleeve having detachable connection therewith, an electromagnet structure extending from said head through said sleeve and terminating at its outer end in a pole, an armature tongue opposed at its outer end to said pole, said armature tongue being polarized, a spring structure supporting said armature tongue at its inner end from said head whereby said armature tongue may vibrate in response to magnetic variations in said electromagnet, and a tool su porting stem extending from said spring tliirough and to the exterior of said head for partaking of the vibrator-y swing of said armature tongue.

4. In a device of the class described, the combination of an enclosure comprisin a conical head and a detachable cylindrical sleeve, said head and sleeve being of insulating material, a yoke plate secured to the inner side of said head, an electromagnet structure extending from said yoke plate through said sleeve and terminating in poles, outer end between said poles, a s ring structure extending from said yoke p ate and secured to said armatures whereby said armature will be suspended to vibrate in response to magnetic changes in said electromagnet structure, said head having a passageway therethrough, a tool supporting stem extending through said passageway and secured at its inner end to said spring to partake of the vibration of said armature, said sleeve having an opening in its base, and terminal pins extending said clectromagnet structure through said opening for detachable connection with an electrical circuit.

In a device of the class described, the combination of an enclosing housing comprising a head and a cylindrical sleevevdetachably applied thereto, an electromagnet structure extending through said Sleeve and supported on said head, an armature opposed between the pole ends of said electromagnet structure. means supporting said armature for vibration in response to magnetic'changes in said electromagnet structure, said head having a passageway. a tool supporting stem extending through said passageway and having connection with said armature to partake of the vibrations thereof, a terminal block supported by the outer end of said electromagnet structure, terminal pins on said block connected with the electromagnet winding. said sleeve havin an opening in its base and said terminalg pins extending through said opening for connection with an external circuit, a sealing washer between said terminal block and said sleeve, and a an armature tongue interposed at itsV sealing sleeve between said tool supporting post and said head.

6. In a device of the class described, the combination of an electromagnet core structure having poles, an armature supported on said structure to vibrate and having its outer ends interposed between 4said poles,.an enclosure head secured to one end of said electromaglnet structure and having a passageway t erethrough, a tool supporting stem -extending through said passageway and conextending therefrom, windings on said cores, the outer ends of said cores being deflected laterally and parallel with each other to form opposed pole pieces, an armature tongue parallel with said cores and in a plane intermediate thereof and having its outer end disposed between said pole pieces, a vibratory spring secured to said yoke and to the inner end of said armature, said armature being polarized whereby it will vibrate in response to alternating current flow.

through said windings, an enclosure head secured to said yoke, said head having a assageway, a tool supporting stem exten ing through said passageway and connected with said armature to partake of the vibratory movement thereof, and an enclosing sleeve having detachable connection with said head, said sleeve enclosing said electromagnet and armature structures.

In witness whereof, I hereunto subscribe my name this 4th dagiof Au st, 1925.

SA PSO W. MOON. 

